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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 547169Generated: October 31, 2026

Potassium Carbonate → HCID 18474783, compound

https://huagongshe.com/reaction/547169

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1-(3-Chloropropyl)-pyrrolidineHCID 11321028—
Reactant4-(4-Chloro-2-fluorophenylamino)-7-hydroxy-6-methoxyquinazolineHCID 135513720—
SolventDimethylformamideHCID 6228—
ProductHCID 18474783HCID 18474783143.3%

Reaction Conditions

Temperature100 °C

Reaction Steps

A solution of 1-(3-chloropropyl)pyrrolidine (230 mg, 0.96 mmol) was added to 4-(4-chloro-2-fluoroanilino)-7-hydroxy-6-methoxyquinazoline (295 mg, 0.92 mmol), (prepared as described for the starting material in Example 2), and potassium carbonate (130 mg, 0.94 mmol) in DMF (8 ml). The mixture was heated at 100° C. for 90 minutes and allowed to cool. The volatiles were removed by evaporation and the residues were partitioned between water and methylene chloride. The organic phase was separated and passed through phase separating paper, and the solvent was removed under reduced pressure. The residue was dissolved in acetone and hydrogen chloride in ether (2 ml of a 1M solution, 2 mmol) was added. The mixture was stirred at ambient temperature for 30 minutes and the resulting precipitate was collected by filtration and dried to give 4-(4-chloro-2-fluoroanilino)-6-methoxy-7-(3-(pyrrolidin-1-yl)propoxy)quinazoline hydrochloride hydrate (320 mg, 67%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUSRE042353E1
Source datasetuspto-grants-2011_05
ORD IDord-0a64ff265215482d89e0e4456ab723b9
Source noteuspto-grants-2011_05